CVE-2026-5567 | Tenda M3 1.0.0.10 Destination /goform/setAdvPolicyData policyType buffer overflow

VDB-355337 · CVE-2026-5567 · GCVE-100-355337 TENDA M3 1.0.0.10 DESTINATION /GOFORM/SETADVPOLICYDATA POLICYTYPE BUFFER OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.0 $0-$5k 1.34+ Summaryinfo A vulnerability has been found in Tenda M3 1.0.0.10 and classified as critical. This issue affects the function setAdvPolicyData of the file /goform/setAdvPolicyData of the component Destination Handler. The manipulation of the argument policyType leads to buffer overflow. This vulnerability is uniquely identified as CVE-2026-5567. The attack is possible to be carried out remotely. Moreover, an exploit is present. Detailsinfo A vulnerability was found in Tenda M3 1.0.0.10. It has been rated as critical. This issue affects the function setAdvPolicyData of the file /goform/setAdvPolicyData of the component Destination Handler. The manipulation of the argument policyType with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-5567. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. The exploit is available at github.com. It is declared as proof-of-concept. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Router Operating System Vendor Tenda Name M3 Version 1.0.0.10 License commercial Website Vendor: https://www.tenda.com.cn/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 8.8 VulDB Meta Temp Score: 8.0 VulDB Base Score: 8.8 VulDB Temp Score: 8.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Buffer overflow CWE: CWE-120 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/04/2026 Advisory disclosed 04/04/2026 +0 days VulDB entry created 04/04/2026 +0 days VulDB entry last update Sourcesinfo Vendor: tenda.com.cn Advisory: github.com Status: Not defined CVE: CVE-2026-5567 (🔒) GCVE (CVE): GCVE-0-2026-5567 GCVE (VulDB): GCVE-100-355337 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/04/2026 16:31 Changes: 04/04/2026 16:31 (58) Complete: 🔍 Submitter: Doma Cache ID: 99:EB7:101 Submitinfo Accepted Submit #782999: Tenda Tenda M3 Access Controller(M3) V1.0.0.10 Buffer Overflow (by Doma) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸